The Yamaha CS-10 is a monophonic analogue synthesizer. It was released in 1977. It is relatively un-famous, so you can buy it cheaply.
It sounds like this (515 KB)
The specifications are here.
Good things about the Yamaha CS-10 are:
- Very wide pitchbend (+/- one octave)
- Seperate volume controls for square and saw waves, ie. you can blend odd/even harmonics to your satisfaction.
- Multimode (hp/bp/lp) filter.
- LFO goes into audio range (max 100 Hz).
- External audio input w. trigger detector, also ext. CV/trig inputs.
Bad points of the Yamaha CS-10:
- Filter keyfollow is always on.
- If you prefer a 4-pole filter, it only has a 2-pole filter.
- LFO mod of VCO is only +/- 60 cents.
- Linear CV. Here are the technical details of the CV.
Manuals
The CS-10 User Manual [with Patch Sheet] is hosted hither and yon.
The Yamaha "Synthesizer Patch Charts" Book for the CS-10/CS-30/CS-30L, is hosted here.